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Old 08-09-2018, 06:59 AM
jeffwhip jeffwhip is offline
Join Date: Jan 2014
Location: Phoenix
Posts: 108
Default Oxygen Bottle Installation

I was wondering if anyone has any suggestions on where to install an oxygen bottle aft of the cargo bulkhead? Any pictures would be appreciated as that is on today's docket!
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Old 08-09-2018, 07:32 AM
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Carl Froehlich Carl Froehlich is online now
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 1,533

I recommend mounting the bottle on top of the tunnel, just aft of the forward seats. This makes it easy in and out for filling, and the pilot has ready accesss to the tank.

I used the large AL-682 (22 cubic feet) Mountain High tank along with the provided nylon case. This tank is more than enough for two people east to west coast and back. The case straps crisscross over the top of the tank, ends secured under four existing tunnel top screws. Taking the tank out is done by undoing the four strap clips.

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Old 08-09-2018, 08:32 AM
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flion flion is offline
Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,486

If it is a portable bottle, I wouldn't put it aft of the baggage compartment. I think the above post is far better. If it is permanent, then you could put it anywhere aft but I think further forward is better. I didn't have much choice because of the A/C ducting one bay back. Here is a picture of the mount I fabricated:

Mountain High's recommendation was to mount the bottle horizontally. I think the logic was that in case of a vertical deceleration, a vertically mounted bottle might slip though the mounts. By that logic, mounting laterally would make the most sense but I didn't have room for that and I think the baggage bulkhead would stop the bottle - if the forces are greater than that the problem is probably moot.

I mounted the fill (and the ground power, no they won't be used at the same time) under the floor of the baggage compartment with a hinged cover so that I wouldn't have to put an external access panel. They are very accessible through the baggage door. Here's a picture of the arrangement before I finished the floor:

These are, of course, just ideas. You will be, in the end, your own engineer and designer.
Patrick Kelley - Flagstaff, AZ
RV-6A N156PK - Flying too much to paint
RV-10 14MX(reserved) - Fuselage on gear
EAA Technical Counselor #5357
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Old 08-10-2018, 06:05 AM
jeffwhip jeffwhip is offline
Join Date: Jan 2014
Location: Phoenix
Posts: 108

Thanks for the replies.
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Old 08-10-2018, 06:56 AM
rv4ator rv4ator is offline
Join Date: Apr 2008
Location: Northern CA
Posts: 72
Default RV-4 O2?

For anyone using O2 in a -4, where did you mount the bottle? Someone posted that they were using/going to use one of those portable O2 generators like the Inogen G4. Any thoughts/experience with a G4 type generator.
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Old 08-10-2018, 08:21 AM
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ppilotmike ppilotmike is offline
Join Date: Jan 2010
Location: Denver, CO
Posts: 1,777
Default Question for the group..

..On a portable setup, is there a reason that it must be located within access of the pilot? In other words, could a portable unit be located out of reach of the pilot, and still be effectively turned off and on in flight?
Mike Rettig
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Old 08-10-2018, 11:16 AM
Tankerpilot75 Tankerpilot75 is offline
Join Date: Jan 2015
Location: Oklahoma City, OK
Posts: 289

My O2 bottle is located vertically behind the right seat in the cargo area using two large screw clamps to secure it. Makes it real easy to check tank pressure and for the pilot to turn on and off the pressure valve. Also very easy to remove for refill.
Jim Harris, RV7A, 2nd owner, N523RM
IO-360, Hartzel CS prop, Older Aerotronics built panel Dual GRT Horizon WS, Garmin 340, 335, Dual 430s, Stratux hard wired to WS, Dynon D10A (backup EFIS)
Retired - Living the dream - And going broke!
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Old 08-10-2018, 04:46 PM
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Aiki_Aviator Aiki_Aviator is offline
Join Date: Jan 2010
Location: Melbourne, Australia
Posts: 233
Default O2 location

I loated mine in the baggage area behind the passenger rear occupant.

I agree that it makes it very easy to access also.

Does not compromise the area that much and brings CG weight closer to centre of balance. :-)
Andrew Long
RV10: Happy little Vegemite :-)
Feb 2015: Now fully functional..... and quick
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